nickyb

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Your possibly wrong list is missing timming,you stated you timed it by ear and don't have spout.Do this now better then later.my 2 cents( now your at 899.98).
my bad opened up to see more, still missing spout????????????
 
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Mustang5L5

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You really need to start poking around in the engine bay and identifying parts. Did you ever identify the heads.

I’m not really sure what you mean by “possible stuff wrong” but all those sensor issues could be due to wrong wiring due to using a sequential injection ECU wuth wrong engine harnesses. We seen it before when someone blows a 302, grabs a junkyard vic motor, and gets it running well enough to sell.

you really need to identify what you have before you can start fixing things. That might mean renting a bore scope to look at the piston tops.

identifying the heads would help. I think thst was post 5 of this thread. E6SEs would be a strong clue it really is a non- HO motor.
 

AydenTv

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it didnt come with spout.. thought an injector was unplugged asked bout bucking and snatching someone said injector i showed a pic of it and they told me bout timing and spout... and one day i was cleaning engine bay and noticed the firing order was weird.. (154) re did it to 137... and wouldnt crank.. then messed with timing and spent 3 days trying to find tdc then livestreams and yt research and tried for a very long time 2 days almost straight to get it to not sound like a lawm mower.. put it back to 154.. boom sounded normal again.. this is timing it right with unplugging spout trying for a sweet spot then plugging it back in and even doing a base idle resets... (probably did 30 base idle resets during that time.. it either is diff motor. injectors swapped or crossed.. or a ghost cam.. i know bout igniton timing advanced timing and total timing pip signals from tfi and of course how the spout is a jumper and somewhat like vaccum advance.. stock is 10 from factory mine is between that and 13...
 

AydenTv

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You really need to start poking around in the engine bay and identifying parts. Did you ever identify the heads.

I’m not really sure what you mean by “possible stuff wrong” but all those sensor issues could be due to wrong wiring due to using a sequential injection ECU wuth wrong engine harnesses. We seen it before when someone blows a 302, grabs a junkyard vic motor, and gets it running well enough to sell.

you really need to identify what you have before you can start fixing things. That might mean renting a bore scope to look at the piston tops.

identifying the heads would help. I think thst was post 5 of this thread. E6SEs would be a strong clue it really is a non- HO motor.
yeah i looked for badges i know it has micky tompson valve covers and a blue under drive pulley lol 8.8 rear end and fire order is 154.. thats it.. and is there any yt vid you can pout me to that shows where engine info badge is.. i doubt this wil be there.. oh and i do have this.. dont have pic atm but the orange ground to fire wall behind intake on injectpr harness was gone
 

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nickyb

WAIT,you now have a pair?
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Don't take this the wrong way, give yourself and that car an early Christmas gift, find a Mustang mechanic,pay him to fix your mess.
 
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Mustang5L5

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yeah i looked for badges i know it has micky tompson valve covers and a blue under drive pulley lol 8.8 rear end and fire order is 154.. thats it.. and is there any yt vid you can pout me to that shows where engine info badge is.. i doubt this wil be there.. oh and i do have this.. dont have pic atm but the orange ground to fire wall behind intake on injectpr harness was gone

there are no badges.

post 11.
 

Mustang5L5

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E6SE heads were used on H.O. engines in 1986 (Capri and Mustang only) and non-H.O. engines. That head alone is not a good enough indication what the whole engine is or isn't.

That’s why I said “clue”. It wouldn’t be the sole determining factor.

non-HO firing order and E6 heads would strongly point more to a non-HO motor than an 86 HO motor.
 
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nickyb

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This guy is asking all over the web for answers,and not listening to anyone here.Let him be,let him be,speaking words of wisdom.
 
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AydenTv

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This guy is asking all over the web for answers,and not listening to anyone here.Let him be,let him be,speaking words of wisdom.
if your speaking of the tps sensor and vac lines i can 100 percent tell anyone its not a vac leak unless it is from my intake... the tps sensor i changed to a foxbodys.. no change... i am broke and not going to theough money at this car on solutions that i know aint going to work
 

General karthief

wonder how much it would cost to ship you a pair
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You need to verify things, if you have a non HO engine (1-5-4-2-6-3-7-8) the A9P computer will fire the injectors in the HO firing order (1-3-7-2-6-5-4-8) so your car will not run right, it can be fixed but you need to verify first,
Are you going to put the effort in to verify this or are you going to jump over to facepage (or were ever else you've been asking) and let them tell you what to do?
We want to help.
But you have to do the labor.
 
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AydenTv

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You need to verify things, if you have a non HO engine (1-5-4-2-6-3-7-8) the A9P computer will fire the injectors in the HO firing order (1-3-7-2-6-5-4-8) so your car will not run right, it can be fixed but you need
ill say this you are imo the most knowledgable guy that has replied to my threads here or anywhere else.. here is what ima do.. instead of taking off the intake valve cover etc.. which i know nothing about and dont have money for gaskets.. i am going to take out all spark plugs and put some straws or paper of each spark plug place.. manual turn over motor and write down the order the paper or straws move in.. that should verify what firing order i need.. then if its 137.. maybe somebserious spark plug foulage or something idk.. if its the 154 then i will need another computer and wire harness right?? or would it be cheaper to get a 5.0 ho motor.. either way im probably screwed lol but ill also try moving my air filter to fender like it should and the maf tube is 70 mm and stock housing (i have ) is 60mm or something smaller.. but if you say the a9p computer wont work with the 154 fire order.. and the 137 sounds like a lawn mower im thinking you are correct and ecu and wire harness is what id need... and it runs and drives great idles normal.. i can spin tires go sideways etc. (only done 2 donuts in grass 1 small burnoutz and only got sideways a few times.. mainly cuz thing has got me mad lol) but it just bucks andbsnatches on me when i get on it.. and ill stay that way like its running out of gas or too much air.. then i can cut it out.. recrank.. and i have lots of power again for 2 mins or till i get on it again... also was told it may have clogged exhaust.. smoke only comes out 1 side the right side when i crank it and its cold i noticed that...
 

AydenTv

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Nov 19, 2020
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You need to verify things, if you have a non HO engine (1-5-4-2-6-3-7-8) the A9P computer will fire the injectors in the HO firing order (1-3-7-2-6-5-4-8) so your car will not run right, it can be fixed but you need to verify first,
Are you going to put the effort in to verify this or are you going to jump over to facepage (or were ever else you've been asking) and let them tell you what to do?
We want to help.
But you have to do the labor.
 

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MustangIIMatt

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ill say this you are imo the most knowledgable guy that has replied to my threads here or anywhere else.. here is what ima do.. instead of taking off the intake valve cover etc.. which i know nothing about and dont have money for gaskets.. i am going to take out all spark plugs and put some straws or paper of each spark plug place.. manual turn over motor and write down the order the paper or straws move in.. that should verify what firing order i need..
That won't verify your firing order.

The pistons move up and down in the same sequence for both firing orders.

The camshaft is what dictates firing order.
 
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General karthief

wonder how much it would cost to ship you a pair
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Park the car.
Save up for a real repair manual that ford produced, you can find them with a google search.
You need to pull off the valve covers and check the firing order by noting when the intake valve opens on what cylinder.
Oh, and I'm the one with the idiot light so I'm far from smart.
It's good to be lucky.
 
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AydenTv

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Update i played woth the air filter moved it to the fender and blocked off air.. it actually helped out alot.. i can actually drive the car without having to kill it 30 times... to my understanding its gettong too much air and the maf sensor (hot wires cleaned and mad senaor replaced ) is tripoing out.. basically it was an open oiled air filter thats been washed by me before and never oiled with no heat shield.. and the foxbodies air filter is closed box ram air inside the fender...
 

Prabh114

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It is time to replace the computer that won't run using the 1,3,7 firing order.

Computer & interchange information for 5.0 Mustang

Revised 16-Oct-2011 to add O2 sensor harness warnings

The Mass Air computers from 89-93 Mustangs are interchangeable with a few exceptions. Just be sure you use the MAF & MAF sensor from the same series computer. The auto transmission computers use a different start circuit than the manual computers. You can use an auto trans computer in a 5 speed car with no problems or changes. I have done it in my original 89 Mustang GT, and I know it works OK. I would recommend avoiding using a 5 speed computer in an auto trans car due to the possibility of damaging the computer’ internal signal ground circuitry.

The odd duck is the 93 Cobra computer, labeled X3Z which is internally calibrated for 24 lb injectors. Use the MAF & MAF sensor from the X3Z computer to avoid problems with the computer's internal calibration. Try and avoid the 93 Cobra computer if you can.

Some cautions about O2 Sensor harnesses need to be observed to avoid damage to the computer.
Only run a 5 speed trans O2 harness with an A9L. Do not run an Auto O2 sensor harness with an A9L. Doing so will damage the computer’s internal signal ground.
Only run an Auto trans O2 sensor harness with an A9P in a car that has an Auto trans. Using a 5 speed trans O2 sensor harness with an Auto trans will cause no crank problems.
See http://forums.corral.net/forums/general-mustang-tech/1094179-oxygen-sensor- harnesses-manual-auto-differences-year-differences.html for more O2 sensor wiring harness info

If you have a damaged computer with signal ground problems, see the pictures below for help finding and fixing the burnt computer trace.
hash-146a243133771eeba54f17b17d721b1f-jpg.jpg

The fix is some careful soldering of a small jumper wire across the burnt section of copper trace.
20160325_234845-jpg.jpg


All the following are mass air unless they say Speed Density
8LD - MANUAL 88 5.0L Mustang Mass Air - California
8LF - Auto 88 5.0L Mustang Mass Air- California
8LG - Auto 88 5.0L Mustang Mass Air- California
A9L - 89-93 5.0L Mustang 5-spd Mass Air
A3M - 93 5.0L Mustang 5-spd Mass Air
A3M1 - 93 5.0L Mustang 5-spd Mass Air
X3Z - 93 5.0L Cobra 5-spd Mass Air internally calibrated for 24 lb injector
A9P - 89-93 5.0L Mustang Auto Mass Air
A9S - 88 5.0L Mustang California Mass Air
C3W - 89-93 5.0L Mustang Auto
DA1 - 87 5.0L Mustang 5-spd Speed Density
J4J1 - 94-95 5.0L SVT Cobra 5-spd
T4M0 - 94-95 5.0L GT Vert 5-spd
U4P0 - 94-95 5.0L GT Auto
W4H0 - 94-95 5.0L GT
ZA0 - 95 Cobra R
D9S - 88 Lincoln LSC Speed Density
I have a 88 SD WHICH COMPUTER SHOULD I RUN? DA1???